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3003 Aluminum Sheet

Last Updated: 2023-09-12

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What is 3003 aluminum?

3003 Aluminum sheet is alloyed with 1.2% manganese to provide a tensile strength range of 17 to 30 KSI. It is essentially commercially pure aluminum with the addition of manganese which increases the strength approx, 20% over 1100 grade aluminum alloy.

3003 aluminum sheet is one of the most widely used of all aluminum alloys. Al 3003 has Excellent workability, weldability, and corrosion resistance.It is a typical Al-Mn antirust alloy. It is one of the alloys that have great machinability.

Signi aluminum manufacture a lot of high quality 3003 aluminum in stock and can give you reasonable factory prices. 3003 aluminum can also be purchased as coil, but in that situation, it would normally be sold to scale weight.

Our 3003 aluminum alloy products in stock include 3003 aluminum sheet, 3003 aluminum coil and 3003 aluminum round sheet / disk, to determine if there is a suitable 3003 aluminum alloy size for you, we invite you to email aluminumtigers@gmail.com today. One of our representatives will help you make the best decision for you.

3003 h14 aluminum sheet

3000 series aluminum sheets/plates:

3003 aluminum metal plate is an alloy plate commonly used in 3000 series aluminum plates. Other alloys in this series include the following:

  1. 3003 aluminum sheet
  2. 3004 aluminum sheet
  3. 3005 aluminum sheet
  4. 3104 Aluminum Sheet
  5. 3105 aluminum sheet
  6. 3A21 Aluminum Sheet

3003 aluminum sheet/plate chemical composition (for reference)

Aluminum 3003 is alloyed with 1.2% manganese to provide a tensile strength range of 17 to 30 KSI. Al 3003 has excellent workability, weldability, formability, and corrosion resistance making 3003 aluminum Sheet a popular and economical choice.

3003 aluminum alloy metal chemical composition

Alloy Si Fe Cu Mn Mg Cr Zn Ti Others:
Al: Min.
3003 0.60 0.70 0.05~0.20 1.0~1.5 0.10 0.05 0.15 remainder

3003 aluminum sheet properties

Physical properties of 3003 aluminum sheet

3003 aluminum Sheet has a smooth, semi-shiny finish and is popular for many applications, including diamond plate/sheet, anodized aluminum plate, tread plate, fuel tanks, food & chemical handling, trailer siding & roofing, etc.

3003 h14 aluminum sheet

It has excellent corrosion resistance, workability, and it may be deep drawn or spun, welded, or brazed. It is non-heat treatable.

The density of 3003 aluminum

The density of 3003 aluminum is 2730 Kg/m³.

aluminum sheet interleaved with paper

The following typical aluminum 3003 properties are not guaranteed since in most cases they are average for various sizes and methods of manufacture and may not be exactly representative of any particular product or size. The data is intended for comparing alloys and tempers and should not be used for design purposes.

3003 aluminum alloy Mechanical Property Specification  (single values are minima except as noted)

Alloy &
Tensile Strength (MPa) Yield Strength 0.2% Proof (MPa)
Elongation (% in 50mm)
minimum for sheet or plate thicknesses shown
0.20-0.32mm 0.33-0.63mm 0.64-1.20mm 1.21-6.30mm 6.31-80.0mm
3003-O 95 – 130 35 18 20 23 25 23
3003-H12 120 – 160 85 3 4 6 9 *
3003-H14 140 – 180 115 1 2 3 5 8 *
3003-H16 165 – 205 145 1 2 3 4 *
3003-H18 185 min 165 1 1 2 4 *

Tempers H22 and H24 etc may not meet maximum tensile strength and minimum yield strength limits, but if supplied in place of ordered H12 or H14 all limits must be complied with.

* Elongation limits stated do not cover the full range of thicknesses shown.

Specialist tempers such as F, H112, and the H2x range are also possible in 3003 – refer to standards for details.

aluminum 3003 alloy Physical Properties (typical values)

Alloy Density (kg/m3) Elastic Modulus
Mean Coefficient of Thermal Expansion
20-100°C (μm/m/°C)
Thermal Conductivity
at 25°C (W/m.K)
Electrical Conductivity MS/m at 20°C Electrical Resistivity
Equal Volume Equal Mass
3003 2730 69 23.2 193 29 92 34


3003 aluminum Physical Properties

Physical Property Value
Density (g/cm³) 2.73 g/cm³
Melting Point 655 ℃
Mean Coefficient of Thermal Expansion
20-100°C (μm/m/°C)
23.1 x10^-6 /K
Modulus of Elasticity(GPa) 69.5 GPa
Thermal Conductivity
at 25°C (W/m.K)
190 W/m.K
20°CElectrical Resistivity
0.034 x10^-6 Ω.m

Possible Alternative Alloys

Alloy Why it might be chosen instead of 3003
5005 Bright (decorative) anodizing finish is required.
5052 Higher strength required and less bright finish is acceptable.
5083 Higher strength or improved corrosion resistance required, particularly for ship hull applications.

To soften Alloy 3003 it can be annealed by heating to 415°C, hold until uniform temperature then cool; the rate of cooling is not important.

3003 aluminum welding

3003 aluminum is readily welded with conventional methods. The filler rod is typically aluminum 1100. When welding 3003 to other aluminum alloys, such as 5052, 6061, or 6062, the filler rod should be 4043 aluminum.

3003 aluminum has a lot of great characteristics that make it a popular choice. Other than being weldable and corrosion-resistant, it also has a surface that has a highly polished finish, making it an attractive choice. Although thin, it cannot be bent easily, instead of requiring special tools to do so.

Aluminum 3003 alloy metal is easily welded and brazed, but soldering is limited to the torch method.

The conductivity of al 3003 alloys is 40 percent of copper.

The main alloying ingredient is Manganese, which gives it greater strength than 1100 while retaining most of the desirable qualities of the 1XXX series. Due to its excellent formability, 3003 has a wide range of uses including cookware.

Specification of 3003 aluminum sheet

Aluminium Sheet/plate/Coil Available Size Range

Dimension Range
Thickness 0.5 ~ 6.0mm for sheet, max 500mm
Width 600 ~ 2,650mm
  • Standard Width and Length: 4×8, 4’x 4′ , 4 in. x 10 in. aluminum sheet, 5 x 10 aluminum sheet, 48″ x 96″ aluminum sheet, 1219 * 2438mm, 1220mm x 2440mm aluminum sheet, 1000mm x 2000mm aluminum sheet, 1250mm x 2500mm, 1219 x 2438mm, 1524 x 3048mm, 1500mm x 3000mm aluminum sheet.
  • Surface Finish: Mill finish (unless otherwise specified), Color Coated, or Stucco Embossed
  • Surface Protection: Paper interleaved, PE/PVC filming (if specified)
  • Minimum Order Quantity: 3MT

In addition to the commonly used specifications, Signi Aluminum can also produce 3003 aluminum ultra-wide and 3003 ultra-thick aluminum plates with internal stress relief and no deformation during cutting, and the width is 2650mm, the thickness is 500mm. We have 3003 aluminum coils and aluminum round of common specifications in stock.

Standard of 3003 aluminum sheet/plate/coil

  • ASTM B209 – This specification covers aluminum and aluminum alloy flat sheet, coiled sheet, and plate in various alloys.
  • BS EN 573 – This specification covers aluminum and aluminum alloys – Chemical composition and form of products.
  • BS EN 485 – This specification sets out the mechanical properties of wrought aluminium and wrought aluminum alloy sheet, strip, and plate for general engineering applications.

Aluminum 3003 after anodizing

3003 may show some slight discoloration when anodized, but it reacts well to mechanical and organic finishings.

Usages of 3003 Aluminum Sheet

Typical uses of 3003 aluminum sheet:

  • heat sinks
  • radiators
  • power battery enclosures
  • automotive heat shields
  • fuel tanks
  • water tanks
  • automotive skid plates
  • battery explosion-proof valves
  • battery covers
  • automotive interiors
  • signs
  • cans
  • medical equipment
  • tube

aluminum diamond plate protector for car

Typical use of Ultra-wide 3003 aluminum sheet: bus skins, silos, antenna pan materials, wide curtain wall panels, wide roof panels, etc.

Use of 3003 aluminum sheet foil coils: honeycomb core aluminum foil, electronic foil, honeycomb material, lunch box material, container foil, etc.

3003 H14 Aluminum Sheet Used for sheet metal work, fuel tanks, and other applications that require slightly higher strength than 1100 series aluminum.

Typical end uses include food and chemical handling equipment, appliance components, truck/trailer roof­ing, heat exchangers, pipe jacketing, and lawn furniture components.

3003 aluminum tubing is also widely used.

car radiator

The difference between aluminum 3003 and 1100 aluminum alloy:

It has all the excellent characteristics of 1100 aluminum alloy with higher strength. Like 1100, 3003 aluminum tends to be gummy when machined but will perform somewhat satisfactorily in the higher tempers with the proper set-up and maximum speeds.

3003 aluminum coil and sheet are approximately 20% stronger than 1100 series aluminum.

What is the difference between 5052 & 3003 aluminum?

3003 aluminum sheet and 5052 aluminum sheet are typically known as “Common Alloys” because they are two of the most widely specified alloys in the aluminum industry.

It is clear that while the chemical compositions look similar, they are alloys that both have much in common and also substantial differences.

3003 is primarily alloyed with Manganese (Mn) and the primary alloy ingredient for 5052 is Magnesium (Mg). In all, you’ll see that 3003 is an alloy of Silicon, Iron, Copper, Magnesium, and Zinc, while 5052 is an alloy of Silicon, Copper, Manganese, Magnesium, Chromium, and Zinc.

3003 is fairly soft and has good corrosion resistance, good drawing, good workability, moderate strength, and is weldable, while 5052-h32 is stronger and has better corrosion resistance, good drawing, good formability, higher strength, and also is weldable.

3003 recommended for cooking utensils and 5052 for hydraulic tube.

See this Postfor details:

The Difference Between 3003 Aluminum & 5052 Aluminum

What is the difference between the 3003 H14 and 6061 T6 aluminum sheet?

3003 aluminum is a common kind of Al-Mn Series Alloy, which is of good anti-rust property. Temper O and H is the common two tempers while 3003-H14 is the most popular kind among 3003 aluminum alloys.

6061 aluminum is an Al-Mg-Si alloy with medium strength, good plasticity, and excellent corrosion resistance. The common tempers of 6061 aluminum plate is T6, F, O. 6061-T6 aluminum sheet is more popular.

What is the difference between 3003 aluminum sheets and 3004 aluminum plate?

3003 aluminum plate and 3004 aluminum plate are AL-Mn alloy, Aluminum 3003 is alloyed with 1.2% manganese to provide a tensile strength range of 17 to 30 KSI. The alloy 3004 is commonly used in the making of beverage cans.

The different between 3003 aluminum plate and 3004 aluminum plate

3003 h14 aluminum sheet

3003-H14 aluminum sheet – (ASTM B209, QQ-A-250/2) Excellent weldability and formability, with good corrosion resistance,  makes 3003 aluminum sheet a popular and economical choice. 3003 Aluminum Sheet has a smooth, semi-shiny finish and is popular for many applications, including fuel tanks, food & chemical handling, trailer siding & roofing, etc.

Possible Alternative Alloys

Material Condition Tensile Strength (ksi min) Yield Strength (ksi min) Elongation % in 2″ 0.064 sheet Min 90° Cold Bend Radius for 0.064″ Thick
3003-0 sheet 0.064″ thick 3003-0 14-19 5 25 0
3003-H12 sheet 0.064″ thick 3003-H12 17-23 12 6 0
3003-H14 sheet 0.064″ thick 3003-H14 20-26 17 5 0
3003-H16 sheet 0.064″ thick 3003-H16 24-30 21 4 1/2 – 1 1/2 T
3003- sheet 0.064″ thick 3003-H18 27 min 24 4 1 1/2 -3T

Signi aluminum has a wide range of sizes readily available to the AMS 4006 for O temper, AMS 4008 for H14.

Cut to size by Signi Aluminum, a leading wholesale of 3003 aluminum sheets and plates in China.

3003 alloy metal related reference materials

Wikipedia for 3003 aluminum alloy

Why choose Signi’ 3003 aluminum?

  1. Best Prices For Alloy 3003 Aluminium Sheet and Coil – Supplied Worldwide with Shortest Delivery Time.
  2. Exporting ASTM, EN Standard Compliant Aluminium 3003 Plate is Our Specialty.
  3. We are a manufacturer, supplier and stockist of 3003 aluminum sheet, which can be cut to the size you need and shipped quickly via overseas warehouses and international logistics, giving you the “near me” experience and peace of mind with after-sales service.
  4. We Can Handle the Logistics for You – We can offer Exworks, FOB, CFR, CIF Delivery to Any Port.
  5. Documents We Provide Include – Certificate of Origin, Invoice & PL Attested by Chamber of Commerce, Test Certificates, Other Testing Reports, as may be Required by Our Customers.

The 3003 h14 aluminum sheet produced by Signi aluminum conforms to AMS QQ-A-250/2 and ASTM B209, 3003 sheet stock is available in full size and custom cut lengths.

3003 aluminum sheet factory

Signi aluminum has more than 15 years experience in manufacturing 3003 aluminum sheet, in the international market we wholesale 3003 aluminum sheets and coils of various sizes, we also supply these products in China, support OEM and ODM services, Bulkbuy metal cut to size 3003 aluminum sheet from Signi aluminum, get the exact size you need.

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